Portable book light



FIG. 1 is a front perspective view of a portable book light showing my new design in the closed position;

FIG. 2 is a front elevational view thereof, the rear being a mirror image;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a bottom plan view of my design. 

The ornamental design for a portable book light, as shown and described. 